updated readme
updated readme

Updated instructions address cloning repo and Windows setup

  * note that cloning is now the https and not ssh uri
  * note the updates to docker downloads for windows he vs windows pro
  * note the new instructions for symbolic links for windows
  * note the new instructions for .env path declaration on windows

DhavalThkkar/internship2017,DhavalThkkar/internship2017,ziff/internship2017